Shredder-cylinder.



No. 740,627. PATENTED OCT. 6, 1903.

. W. A. BUSH. SHREDDER CYLINDER.

APPLICATION FILED MAB. 5, 1903.

H0 MODEL.

FIEHE- W/TNESSZfi INVENTOR X V c r d, Q M

Aitomey iio. 740m.

PATENT Iatented' October 6, 1903 OFFICE.

WILLIS A. BUSH, OF SOUTH POTTSTOWN, PENNSYLVANIA.

SHREDDER-CYLINDER.

SPECIFICATION forming part of Letters Patent No. 740,627, dated October6, 1903.

Application filed March 5, 1903.

' to be a full clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to cylinders for shredding up straw, cornstalks,and other material;

and it consists in the novel construction and combination of the partshereinafter fully described and claimed.

In the drawings, Figure 1 is an end view of the shredd ing-cylinder. ofthe same. Fig. 3 is a detail view of the driving-shaft and key. Fig. 4is a plan view of one of the shallow pockets'c, showingone of the knivesin cross-section. Fig. 5 is a longitudinal section through one of thedeep pockets 0, taken on the line a: w in Fig. l.

A is the driving-shaft of the shredding-cylinder, which is supported andrevolved in any approved manner.

The shredding-cylinder is formed of a se-' ries of fiat disks B, all ofwhich are exactly alike. The disks B have two pockets 1) bin one sideand two pockets 0 c in the other side. The pockets 1) are deeper thanthe pockets 1), and the pockets 0 are deeper than the pockets 0. Thefour pockets of each disk are arranged at equal distances apart upon thepe-' riphery of the disk, and they are inclined with respect to the axisof the shaft. Each pocket is provided with beveled sides and ends a.

D represents the shredding-knives, which are all alike and which arereversible,;their front and rear portions being the same. These knivesare placed in the pockets, and E represents bolts which pass through allthe disks and knives and secure the saidparts firmly in position. .Thesides and. ends'of the knives are not beveled, and the knives fitclosely in the bottoms of the pockets without touching the upper partsof their beveled sides and ends. I

Washer plates or packing plates cl are placed above the knives in thedeep pockets Z2 and c to prevent the knives in those pock- Fig. 2 is'aplan view- Serial No. 146,293. (No model.)

ets from moving laterally. The knives are spaced at equal distancesapart laterally, and the deep pockets 1) and c are of twice the depth ofthe shallow pockets 1) and c. The thickness of each disk issubstantially four times the thickness of each knife, so that the rightside of each knife is in the plane of the left side of the knife next toit in the series.

in the middle and which is secured to the driving-shaft The disks areforced onto this key and are held in position by the bolts E. One halfof the disks are forced onto one half of the key from one end of it, andthe other half of the disks are forced onto the other half of the keyfrom the other end of it.

When the faces of the teeth become worn, the teeth are taken out and arereversed in position, so that the portions which originally Werethebacks of the teeth become their cutting-faces after the teeth have beenreversed.

That I claim is- 1. In a shredding-cylinder, the combina tion, with ashaft, of a series of flat disks mounted on the said shaft, each of thesaid disks having a shallow pocket and a deep pocket in each side of it,knives arranged in the said pockets, loose packing-plates arranged overthe knives in the said deep pockets, and bolts which secure all the saiddisks, knives and packing-plates together.

2. In a shreddingcylinder, the combination, with a shaft, of a series offlat disks mounted on the said shaft, each of thesaid disks having 'ashallow pocket and a deep pocket in each side of it, and the saidpockets all having beveled sides and ends, knives which fit in thebottoms of the said pockets, loose packing-plates arranged over theknives in the said deep pockets, and bolts which secure all the saidknives, disks and packingplates together.

3. In a shreddingcylinder, the combination, with a shaft, and adouble-tapered key widest in the middle and projecting from the saidshaft; of a series of disks provided with pockets and engaging with thesaid shaft and key, knives projecting from the said pockets, andlongitudinal bolts which secure the said disks together and press themupon the tapering end portions of the said key.

4. In a shredding-cylinder, the combina- G is a double-tapered key whichis widest tion, with a shaft, of a series of flat'disks mounted on thesaid shaft, all the said disks being exactly alike, and each said diskhavsaid disks, knives and packing-plates and secure them together. 10

In testimony whereof I affix my signature \VILLIS A. BUSH.

ing a shallow pocket and a deep pocket in in presence of two witnesses.each side of it, reversible knives arranged in I the said pockets, loosepacking plates arranged over the knives in the said deep p0ck ets, andbolts which pass through holes in the Witnesses:

THOMAS E. BROWN, A. J. BERNHART.

